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Publicação
Pegada Carbónica de Conferências Internacionais
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Resumo(s)
This dissertation aims to quantify and explore possibilities for optimizing the carbon footprint of scientific events, with a particular focus on the impact of events associated with the Faculty of Sciences of the University of Lisbon (FCUL). For this purpose, three international conferences were analyzed: two hybrid events, held in Lisbon (conference A1) and Melbourne (conference A2), and one in-person event held exclusively in Lisbon (conference B). Data for conferences A1 and A2 were kindly provided by the organizing committees through registration forms. In the case of conference B, data was obtained through a survey. As expected, international travel accounts for between 80% and 90% of participants’ total carbon footprints. Emissions ranged from 747 kg of CO2e (conference B) to 1339 kg of CO2e (conference A2). Surveys prove particularly useful when they have a high response rate. For example, the questionnaire for conference A1, with a 32% response rate, presented only a 10.5% discrepancy compared to actual values. The creation of a network of hubs — such as the introduction of a second or third meeting location — would result in an increase of 12 to 25 monetary units (MU) per participant in conferences A1 and A2. However, this strategy would yield a substantial reduction in carbon emissions: 39% for A1 and 63% for A2, respectively. Additionally, introducing travel distance limitations would further reduce both the carbon footprint and cost per participant. It is concluded that accounting for the two events organized in partnership with FCUL results in at least a 19% increase in total carbon emissions.
Descrição
Tese de Mestrado, Engenharia da Energia e Ambiente, 2025, Universidade de Lisboa, Faculdade de Ciências
Palavras-chave
Optimization Hub Network Reference Organizational Cost Transportation Carbon Dioxide Equivalent